This was a top-of-the-line ultrabook in 2002, I got mine 'cause someone was throwing it away in 2019. It has 512 megs of RAM and runs Windows XP nicely! Mine's setup to replace my XP Virtualbox image I use for Sword of Moonlight and Klik & Play. Would've liked to run Windows 3.x on there, but apparently it's not MS-DOS-friendly, drivers-wise.

• https://www.thinkwiki.org/wiki/Category:X40

Apparently it has this little light to help typing, but I haven't tried it yet.

Doesn't work without thinkfan

http://blog.mixu.net/2012/01/19/how-to-thinkpad_acpi-and-fan-control-on-arch/

I use xbacklight to change screen brightness. In my i3wm config:

bindsym XF86MonBrightnessUp exec --no-startup-id xbacklight -inc 10
bindsym XF86MonBrightnessDown exec --no-startup-id xbacklight -dec 10

Memory card seems to sometimes work, sometimes not? Maybe just needs a reset?

There's this applicable driver in the AUR: rts5227-dkms

• Arch Linux
• thinkwiki.org/wiki/Colour_profile
• ICC_profiles#ThinkPads